comparison: src/msglog.cpp
src/msglog.cpp
- changeset 322
- 5e701c3c3d8e
- child 324
- 31c6e53e1e4e
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| 321:48e429bfd58c | 322:5e701c3c3d8e |
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| 1 /* | |
| 2 * LDForge: LDraw parts authoring CAD | |
| 3 * Copyright (C) 2013 Santeri Piippo | |
| 4 * | |
| 5 * This program is free software: you can redistribute it and/or modify | |
| 6 * it under the terms of the GNU General Public License as published by | |
| 7 * the Free Software Foundation, either version 3 of the License, or | |
| 8 * (at your option) any later version. | |
| 9 * | |
| 10 * This program is distributed in the hope that it will be useful, | |
| 11 * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
| 13 * GNU General Public License for more details. | |
| 14 * | |
| 15 * You should have received a copy of the GNU General Public License | |
| 16 * along with this program. If not, see <http://www.gnu.org/licenses/>. | |
| 17 */ | |
| 18 | |
| 19 #include "msglog.h" | |
| 20 #include "gldraw.h" | |
| 21 #include "gui.h" | |
| 22 #include <QTimer> | |
| 23 #include <QDate> | |
| 24 | |
| 25 static const unsigned int g_maxMessages = 5; | |
| 26 static const int g_expiry = 5; | |
| 27 static const int g_fadeTime = 500; // msecs | |
| 28 | |
| 29 MessageManager::MessageManager( QObject* parent ) : QObject( parent ) | |
| 30 { | |
| 31 m_ticker = new QTimer; | |
| 32 m_ticker->start( 100 ); | |
| 33 connect( m_ticker, SIGNAL( timeout() ), this, SLOT( tick() )); | |
| 34 } | |
| 35 | |
| 36 MessageManager::Line::Line( str text ) : text( text ), alpha( 1.0f ) | |
| 37 { | |
| 38 // Init expiry | |
| 39 expiry = QDateTime::currentDateTime().addSecs( g_expiry ); | |
| 40 } | |
| 41 | |
| 42 // ============================================================================= | |
| 43 // Check this line's expiry and update alpha accordingly. Returns true if the | |
| 44 // line is still around, false if it expired. | |
| 45 bool MessageManager::Line::update( bool& changed ) | |
| 46 { | |
| 47 changed = false; | |
| 48 | |
| 49 QDateTime now = QDateTime::currentDateTime(); | |
| 50 if( now >= expiry ) | |
| 51 { | |
| 52 changed = true; | |
| 53 return false; | |
| 54 } | |
| 55 | |
| 56 int msec = now.msecsTo( expiry ); | |
| 57 if( msec <= g_fadeTime ) | |
| 58 { | |
| 59 alpha = ( (float) msec ) / g_fadeTime; | |
| 60 changed = true; | |
| 61 } | |
| 62 | |
| 63 return true; | |
| 64 } | |
| 65 | |
| 66 void MessageManager::addLine( str line ) | |
| 67 { | |
| 68 // If there's too many entries, pop the excess out | |
| 69 while( m_lines.size() >= g_maxMessages ) | |
| 70 m_lines.erase( 0 ); | |
| 71 | |
| 72 m_lines << Line( line ); | |
| 73 | |
| 74 // Force a tick, we added a new message and it should | |
| 75 // show up immediately. | |
| 76 tick(); | |
| 77 } | |
| 78 | |
| 79 MessageManager& MessageManager::operator<<( str line ) | |
| 80 { | |
| 81 addLine( line ); | |
| 82 return *this; | |
| 83 } | |
| 84 | |
| 85 void MessageManager::tick() | |
| 86 { | |
| 87 bool changed = false; | |
| 88 | |
| 89 for( uint i = 0; i < m_lines.size(); ++i ) | |
| 90 { | |
| 91 bool lineChanged; | |
| 92 | |
| 93 if( !m_lines[i].update( lineChanged )) | |
| 94 m_lines.erase( i-- ); | |
| 95 | |
| 96 changed |= lineChanged; | |
| 97 } | |
| 98 | |
| 99 if( changed ) | |
| 100 renderer()->update(); | |
| 101 } | |
| 102 | |
| 103 MessageManager::c_it MessageManager::begin() const | |
| 104 { | |
| 105 return m_lines.begin(); | |
| 106 } | |
| 107 | |
| 108 MessageManager::c_it MessageManager::end() const | |
| 109 { | |
| 110 return m_lines.end(); | |
| 111 } | |
| 112 | |
| 113 void DoLog( std::initializer_list<StringFormatArg> args ) | |
| 114 { | |
| 115 g_win->addMessage( DoFormat( args )); | |
| 116 } |
